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prepared by Adam Parker PE (MN,WI,TX,BC,AB) <br />387 -Orono Orchard Road -Drainage GRAYS 24 -hr S1 10 -yr Rainfall=4.29" <br />Prepared by {enter your company name here} Printed 6/20/2018 <br />HvdroCADO 10.00-11 s/n 01636 © 2014 HvdroCAD Software Solutions LLC Paae 8 <br />Summary for Subcatchment EX: Existing - Lot 2 area <br />Runoff = 3.22 cfs @ 12.42 hrs, Volume= 0.388 af, Depth> 1.31" <br />Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs <br />GRAYS 24 -hr S1 10 -yr Rainfall=4.29" <br />Area (sf) CN DescriDtion <br />12,609 <br />98 Existing House and Driveway <br />5,109 <br />98 Existing Street on Lot <br />137,755 <br />61 >75% Grass cover, Good, HSG B <br />155,473 <br />65 Weighted Average <br />137,755 <br />88.60% Pervious Area <br />17,718 <br />11.40% Impervious Area <br />Tc <br />Length <br />Slope <br />Velocity Capacity Description <br />(min) <br />(feet) <br />(ft/ft) <br />(ft/sec) (cfs) <br />30.1 <br />850 <br />0.0200 <br />0.47 Lag/CN Method, <br />Subcatchment EX: Existing - Lot 2 area <br />Hydrograph <br />3.2;c;f s <br />RA' YS 24h'r � 11AD--y <br />3 kailnfall=41,2§� I I I <br />Runoff Area�=155A73 V <br />Runoff Vglune=Q.388i aid_ <br />2- <br />- Dept>1. 1" �,,unoff <br />wLn h -I ,ILL e t 850 <br />�Iolpe=0.0 Ob <br />tc=30.11 m i nl- -1 <br />GN=65 <br />/////////////////////////% <br />/////////////////%/////// <br />❑Runoff <br />